some manufacturers like samsung have done very well with screens that are five inches or more in size. the iphone 5 is a four inch screen. >> reporter: apple is still far more profitable than any other consumers electronics firm in the world. but, analyst's celestial expectations have led to a crushing fall for apple shares. since hitting a high of $705 in september, the stock has lost nearly 30%. the selloff has trigged a big debate on wall street. are the shares cheap enough to buy, or is the market darling done? apple bulls argue the gadget maker has a p.e. of just 11. apple bears say the company's days as a fast growth giant are over. for investors on the fence, it may make sense to wait until apple releases it latest quarterly results next wednesday. some experts are speculating apple will fall short on revenues, because of weak ipad demand. >> in the tablet world you've certainly seen the android tablets get more of a foothold into the tablet market, a market that was almost entirely apple's for quite a while. >> reporter: if apple doesn't have enough troubles, here's potentiall